Remove define of Pry class attributes from lib/pry/pry_class.rb to lib/pry.rb . pry/commands and Pry.config have circular-dependency. In rare case (c.f . #978) Pry.config is initialized not properly. We will fix this bug by this commit.
Fix load error(forwardable), remove require 'forwardable' from pry/pry_class.rb to pry.rb
Merge pull request #1038 from yui-knk/FixInitializeStep

Remove define of Pry class attributes from lib/pry/pry_class.rb to lib/p...